Air Quality in Leça do Bailio, Portugal

Cloudy
18.8°C · 75.8% humidity
18.8°
Feels 18.8°
58
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
57 11am
57
57
58 2pm
63
67
50 5pm
52
53
54 8pm
55
56
— 11pm
—
—
— 2am
—
—
— 5am
—
—
— 8am
—
—
Station readings
57
57
60
CAMS model adj +23
34
34
34
54
54
54
34
34
34
34
34
34
AD 728×90

Air Quality Index Trend

47h · 1 stn

Leça do Bailio's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level. Current PM2.5 concentration in Leça do Bailio is 1.0× the WHO 24-hour guideline of 15 µg/m³.

75.8%
Humidity
29.1 km/h
Wind W
1016.2 hPa
Pressure
24.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
58
15.56 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Leça do Bailio?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.515.56 µg/m³ ✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX24.9
Extreme
AD 300×250
Station readings (1 station within 25 km)
15.56
Median
15.56
Average
15.56
Low
15.56
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -2.1
Both models agree Avg diff: 2.3°C

Where are air quality stations near Leça do Bailio?

43
Sobreiras-Lordelo do Ouro, Porto, Portugal
7.5 km PM2.5: 10.3 µg/m³
27
Sobreiras-Lordelo do Ouro, Porto, Portugal
7.5 km PM2.5: 6.5 µg/m³
60
AirGradient O-1PST
19.8 km 23.8°C 72.9% RH PM2.5: 16.3 µg/m³ PM10: 29.6 µg/m³
21
Paços de Ferreira, Paços de Ferreira, Portugal
22.7 km PM2.5: 5.0 µg/m³
50
Paços de Ferreira, Paços de Ferreira, Portugal
22.7 km PM2.5: 12.0 µg/m³

What cities are near Leça do Bailio?

58 São Tiago de Custoias 58 Maia 58 São Mamede de Infesta 58 Senhora da Hora 58 Vermoim 58 Águas Santas 58 Paranhos 58 Matosinhos 58 Aldoar 58 Leça da Palmeira
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-30T13:12 UTC.